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Subject: [M]: [OPTICS] Barlow chromatic problem
From: Frank ROUSSEL
Reply To: mapug@shore.net
Date: Thu Sep 09 01:47:44 1999
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Hello,
I've recently taken photos of the Moon with my Meade LX200 SCT 8"
using the Meade apochromatic barlow (3 lenses) inside tele-converter.
And I clearly see little colored areas on the photos (red, green)
although the Moon is grey. That's not the case when I replace the
barlow with a Meade eyepiece inside the tele-converter.
A friend of mine told me he had the same problem with a Celestron
Ultima barlow. Are you aware about such barlow chromatic problem ?
Regards,
Frank Roussel
http://www.cnam.fr/astro/
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